Georg friedrich kkohn



.. NITED STATES PATENT l nient GEORG 'FRlEDRlCIl KROHN, OF ALTONA, ASSIGNOR TO AUGUST PAUL HORN, OFllAMBURG, GERMANY.

PROCESS OF POLISHING WOOD.

SPECIFICATION forming part of Letters Patent No. 545,235, dated August 27, 1895. Application filed August 3,1894. Serial No. 519,386. (No specimens) Patented in Germany April 27,1894,No.75.740.

To aZZ whom it may concern:

Be it known that I, Gnone FRIEDRICH KROHN, a subject of the Emperor of Germany, residing at Altona, in Germany, have invented new and useful Improvements in the Process of Polishing Need, (for which I have obtained a patent in Germany, No. 7 5,740, dated April 7, 189%,) of which the following is a specifica- In polishing furniture according to the ordinary method it is first rough-polished with one of the usual polishes and afterward finished off by being polished with spirit or alcohol. This final polishing with spirit or alcohol is a very laborious and tedious operation, since the spirit or alcohol does not dissolve, or only very slightly, the oils and fats left upon the furniture by-the first or preliminary polishing. Now the furniture-polish hereinafter described is intended to be employed in place of the spirit or alcohol for the final polishing operation. It is prepared by mixin g, in or about the proportions given,

the following substances in the manner herein set forth: Two hundred and forty kilograms of alcohol, such as methylated spirit, are intimately mixed with one hundred and twenty kilograms of acetone and slightly heated. In this mixture eight kilograms of benzoin and sixteen kilograms of sandarac are completely 3o dissolved. After this solution has been carefully filtered four hundred and forty kilograms of benzine are added and intimately mixed therewith by shaking. In this manner there is produced a perfectly-clear liquid, which is ready for use as a finishing-polish. The high percentage of benzine which it contains dissolves very quickly the fats remaining from the rough polishing, so that by the use of this liquid a very highly-polished surface on the article treated can be produced in a very short time. The high degree of polish is very lasting, and the polished surface is not liable to become cracked or toassume a dull or blistered appearance.

What I claim is= The process of polishing wood which consists in first rough polishing it and then fin ishing it ed with a mixture'composed of alcohol, acetone, benzoin, sandarac and benzine, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEORG FRIEDRICH KROHN.

Witnesses:

WILHELM KocH, HEINRICH Eeonns. 

